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networkmanager: Add option for overriding DNS settings

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If the option is enabled, the DNS servers from networking.nameservers
will be inserted in /etc/resolv.con and override any DNS servers that
NetworkManager receieves by DHCP, or that is configured manually
in the connection settings.
This commit is contained in:
Rickard Nilsson 2013-08-16 00:35:57 +02:00
parent f7d11af98a
commit e36e979d38
1 changed files with 41 additions and 19 deletions
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28
modules/services/networking/networkmanager.nix
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@ -44,13 +44,21 @@ let
fi
'';
overrideNameserversScript = writeScript "02overridedns" ''
#!/bin/sh
${pkgs.gnused}/bin/sed -i '/nameserver /d' /etc/resolv.conf
${pkgs.lib.concatStringsSep ";" (map (s: "echo 'nameserver ${s}' >> /etc/resolv.conf") config.networking.nameservers)}
'';
in {
###### interface
options = {
networking.networkmanager.enable = mkOption {
networking.networkmanager = {
enable = mkOption {
default = false;
merge = mergeEnableOption;
description = ''
@ -62,7 +70,7 @@ in {
'';
};
networking.networkmanager.packages = mkOption {
packages = mkOption {
default = [ ];
description = ''
Extra packages that provide NetworkManager plugins.
@ -70,6 +78,17 @@ in {
merge = mergeListOption;
apply = list: [ networkmanager modemmanager wpa_supplicant ] ++ list;
};
overrideNameservers = mkOption {
default = false;
description = ''
If enabled, any nameservers received by DHCP or configured in
NetworkManager will be replaced by the nameservers configured
in the <literal>networking.nameservers</literal> option.
'';
};
};
};
@ -98,7 +117,10 @@ in {
{ source = "${networkmanager_openconnect}/etc/NetworkManager/VPN/nm-openconnect-service.name";
target = "NetworkManager/VPN/nm-openconnect-service.name";
}
];
] ++ pkgs.lib.optional cfg.overrideNameservers
{ source = overrideNameserversScript;
target = "NetworkManager/dispatcher.d/02overridedns";
};
environment.systemPackages = cfg.packages ++ [
networkmanager_openvpn